$1.$ Create two DataFrames with overlapping columns and perform an inner join to combine the results based on a common key.

$2.$ Create two DataFrames with overlapping columns andd perform an outer join, what changes in the final result compared to the previous exercise?

$3.$ Generate a pseudorandom number using the random module, and a pseudorandom number using the features provided by NumPy. Which of the two approaches is considered more safe to use in case of data

encryption? Which of the two approaches has the longest runtime?